Geografic-Information-System/lib/rowio/forget.c

/*!
  \file rowio/forget.c
  
  \brief RowIO library - Release a row
  
  (C) 2001-2009 by the GRASS Development Team
  
  This program is free software under the GNU General Public License
  (>=v2).  Read the file COPYING that comes with GRASS for details.
  
  \author Original author CERL
*/

#include <grass/rowio.h>

/*!
  \brief Release row from memory

  \param R pointer to ROWIO structure
  \param row row number
*/
void Rowio_forget(ROWIO * R, int row)
{
    int i;

    if (row < 0)
	return;

    for (i = 0; i < R->nrows; i++)
	if (row == R->rcb[i].row) {
	    R->rcb[i].row = -1;	/* no longer in memory */
	    break;
	}
}